| No. | Champion | Championship change | Reign statistics | Notes | Ref. |
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| Date | Event | Location | Reign | Days |
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| 1 | Pierroth Jr. | September 28, 1997 | IWRG show | Naucalpan, State of Mexico | 1 | 672 | DefeatedBlack Magic in the finals of an eight-man tournament. | [1] |
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| 2 | Pirata Morgan | August 1, 1999 | IWRG show | Naucalpan, State of Mexico | 1 | 114 | | [1] |
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| 3 | Super Parka | November 23, 1999 | Live event | Yokkaichi, Japan | 1 | 23 | | [1] |
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| 4 | Scorpio Jr. | December 16, 1999 | IWRG show | Naucalpan, State of Mexico | 1 | 609 | | [1] |
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| 5 | Tinieblas Jr. | August 16, 2001 | IWRG show | Naucalpan, State of Mexico | 1 | 378 | | [7] |
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| 6 | Scorpio Jr. | August 29, 2002 | IWRG show | Naucalpan, State of Mexico | 2 | 273 | | [8] |
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| 7 | El Enterrador | May 29, 2003 | IWRG show | Naucalpan, State of Mexico | 1 | 136 | | [9] |
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| 8 | Tinieblas Jr. | October 12, 2003 | IWRG show | Naucalpan, State of Mexico | 2 | 123 | | [9] |
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| 9 | Villano IV | February 12, 2004 | IWRG show | Naucalpan, State of Mexico | 1 | 210 | | [10] |
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| 10 | Scorpio Jr. | September 9, 2004 | IWRG show | Naucalpan, State of Mexico | 3 | 245 | | [10] |
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| 11 | Heavy Metal | May 12, 2005 | IWRG show | Naucalpan, State of Mexico | 1 | 224 | | [11] |
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| 12 | Scorpio Jr. | December 22, 2005 | Guerra del Golfo | Naucalpan, State of Mexico | 4 | [e] | | [11] |
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| — | Vacated | February 2006 | — | — | — | — | Championship vacated when Scorpio Jr. left the promotion. | [12] |
| 13 | Canek | May 5, 2006 | IWRG show | Naucalpan, State of Mexico | 1 | 1,444 | DefeatedRayo de Jalisco Jr. in aRelevos Increibles, that sawPerro Aguayo Jr. andHeadhunter A against Canek and Jalisco. | [12] |
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| 14 | Máscara Año 2000 Jr. | April 18, 2010 | IWRG show | Naucalpan, State of Mexico | 1 | 67 | | [13] |
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| 15 | Silver King | June 24, 2010 | IWRG show | Naucalpan, State of Mexico | 1 | 479 | | [14] |
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| 16 | Taboo | October 16, 2011 | Dr. Wagner 50th Anniversary Show | Naucalpan, State of Mexico | 1 | 70 | This was aneliminationsteel cageTitle vs. Masks match, also involvingDr. Wagner Jr. andLa Parka. | [15] |
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| 17 | Headhunter I | December 25, 2011 | Guerra de Campeones | Naucalpan, State of Mexico | 1 | 179 | This was athree-wayBullterrier match, also involvingElectroshock. | [16] |
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| 18 | Cien Caras Jr. | June 21, 2012 | IWRG show | Naucalpan, State of Mexico | 1 | 584 | Won the match and the title via disqualification.[f] | [17] |
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| 19 | Vampiro Canadiense | January 26, 2014 | IWRG show | Naucalpan, State of Mexico | 1 | 161 | | [18] |
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| — | Vacated | July 6, 2014 | — | — | — | — | Championship declared vacant by IWRG due to Vampiro not working for IWRG for an extended period of time. | |
| 20 | El Hijo de Dos Caras | July 20, 2014 | IWRG show | Naucalpan, State of Mexico | 1 | 448 | This was a six-wayladder match, also involvingDemon Clown,Dr. Wagner Jr.,L.A. Park,Máscara Sagrada andPirata Morgan. | [19] |
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| 21 | Máscara Año 2000 Jr. | October 11, 2015 | Caravana de Campeones | Naucalpan, State of Mexico | 2 | 21 | | [20] |
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| 22 | El Hijo de Dos Caras | November 1, 2015 | Castillo del Terror | Naucalpan, State of Mexico | 2 | 105 | | [21] |
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| 23 | Trauma I | February 14, 2016 | Live event | Naucalpan, State of Mexico | 1 | 70 | This match also involvedHerodes Jr. | [22] |
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| 23 | Máscara Año 2000 Jr. | April 24, 2016 | IWRG show | Naucalpan, State of Mexico | 3 | 49 | | [23] |
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| 24 | Mr. Electro | June 12, 2016 | IWRG show | Naucalpan, State of Mexico | 1 | 56 | Won the match and the championship by disqualification | [24] |
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| 25 | Trauma I | August 7, 2016 | Máscara vs. Cabellera | Naucalpan, State of Mexico | 2 | 133 | | [25] |
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| 26 | Mr. Electro | December 18, 2016 | IWRG show | Naucalpan, State of Mexico | 2 | 733 | Won the match and the championship by disqualification | [26] |
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| 27 | Máscara Año 2000 Jr. | December 21, 2018 | Arena Naucalpan 41st Anniversary Show | Naucalpan, State of Mexico | 4 | 114 | This was a triple threat apuestas match, also including Toscano. Máscara Año 2000 Jr. and Toscano put their hairs on the line | [27] |
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| 28 | El Hijo de Canis Lupus | April 14, 2019 | IWRG 80. Torneo FILL | Naucalpan, State of Mexico | 1 | 546 | El Hijo de Canis Lupus defeatedMáscara Año 2000 Jr. by count-out. Even so, it was considered a title change. | [28] |
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| 29 | Fresero Jr. | October 11, 2020 | N/A | Naucalpan, State of Mexico | 1 | 329 | | [28] |
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| — | Vacated | September 5, 2021 | — | — | — | — | | |
| 30 | Gianni Valletta | September 5, 2021 | IWRG show | Naucalpan, State of Mexico | 1 | 11 | | [29] |
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| 31 | El Hijo del Espectro Jr. | September 16, 2021 | IWRG show | Naucalpan, State of Mexico | 1 | 328 | | [30] |
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| — | Vacated | August 10, 2022 | — | — | — | — | | |
| 32 | Galeno del Mal | August 21, 2022 | Caravana de Campeones | Naucalpan, State of Mexico | 1 | 438 | Defeated AK47 to win the vacant championship. | [31] |
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| 33 | DMT Azul | November 2, 2023 | Castillo del Terror | Naucalpan, State of Mexico | 1 | 426 | This was a five-wayelimination match, also involving Ivan Rokov, Vito Fratelli andHijo del Pirata Morgan. | [32] |
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| 34 | Dr. Wagner Jr. | January 1, 2025 | IWRG Guerreros De Acero 2025 | Naucalpan, State of Mexico | 1 | 303 | | [33] |
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| 35 | DMT Azul | October 31, 2025 | Castillo del Terror | Naucalpan, State of Mexico | 2 | 28+ | This was a four-wayCasket match, also involvingChessman andPirata Morgan. | [34] |
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